2001506455 has 32 divisors (see below), whose sum is σ = 2732083200. Its totient is φ = 1395418752.

The previous prime is 2001506449. The next prime is 2001506459. The reversal of 2001506455 is 5546051002.

It is not a de Polignac number, because 2001506455 - 2³ = 2001506447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001506459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376506 + ... + 381784.

It is an arithmetic number, because the mean of its divisors is an integer number (85377600).

Almost surely, 2^2001506455 is an apocalyptic number.

2001506455 is a deficient number, since it is larger than the sum of its proper divisors (730576745).

2001506455 is a wasteful number, since it uses less digits than its factorization.

2001506455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5623.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2001506455 is about 44738.1990585227. The cubic root of 2001506455 is about 1260.2373062314.

Adding to 2001506455 its reverse (5546051002), we get a palindrome (7547557457).

The spelling of 2001506455 in words is "two billion, one million, five hundred six thousand, four hundred fifty-five".